* BlackBerry Ltd fell 2.2 percent to C$13.61 after agreeing to pay Nokia about $137 million in a contract dispute, while Barrick Gold Corp slipped 0.7 percent to C$17.70 after saying it had bought a stake in a smaller gold miner.

* The materials group, which includes precious and base metals miners and fertilizer companies, lost 0.9 percent.

* Six of the index’s 10 main groups were lower, with two decliners for every advancer overall, and the index was heading for a 0.4 percent slip over the course of the week.

* The energy group climbed 1.3 percent, as oil prices rose following a deal among major producer to extend an output curb.

* MEG Energy Corp rose 2.6 percent to C$5.60 after the oil sands producer said it expects higher production in 2018, compared to its 2017 forecast.

* U.S. crude prices were up 1.9 percent at $58.50 a barrel, while Brent added 1.8 percent to $63.78.

* The financials group gained 0.4 percent, with Canadian Imperial Bank of Commerce up 2 percent at C$120.48, extending gains as several analyst upgraded their view on the stock following its Thursday earnings beat.

* BRP Inc jumped early before pulling back to trade up 1.4 percent to C$47.84 after the Ski-Doo maker posted earnings that beat expectations. (Reporting by Alastair Sharp; Editing by David Gregorio)